This is the 6761st most frequent German word.
explosionwar
The term "explosionwar" is not a German word.
The word 'explosionwar' translates as 'explosion war' and its usage here is within the German phrase 'Explosion war' meaning 'the explosion was'.
Die Explosion war so laut, dass alle Bewohner zusammenkamen.
The explosion was so loud that all the residents gathered.
The context 'Explosion war' refers to 'explosion was', framing the past tense of 'war' in correlation with 'explosion'.
Eine Explosion war unerwartet und erschreckend.
An explosion was unexpected and frightening.
Here 'Explosion war' implies a reference to actions following the explosion as described in past events.